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EN

SB-2-779-R1  (4/2018)

3 / 12

www.carlisleft.com

IMPORTANT:  Before using this 

equipment, read all safety precautions 

on page 2 and instructions. Keep for 

future use.

H a l o g e n a t e d   h y d r o c a r b o n 

solvents - for example; 1, 1, 1- 

trichloroethane and methylene 

chloride - can chemically react 

with the aluminum in this gun 

and cause an explosion hazard. 

Read the label or data sheet for the 

material you intend to spray. Do 

not use spray materials containing 

these solvents with this spray gun.

IMPORTANT: This gun may be used with 

most common coating and finishing  

materials. It is designed for use with mildly 

corrosive and non-abrasive materials.  

If used with other high corrosive or  

abrasive materials, it must be expected 

that frequent and thorough cleaning will  

be required and the necessity for replacement 

of parts will be increased. 

HVLP MODELS ONLY:

HVLP models of this gun were manufactured 

to provide maximum transfer efficiency by 

limiting air cap pressure to 10 psi (complies 

with rules issued by SCAQMD and other air 

quality authorities).  

HVLP models of this gun will produce  

approximately 10 psi cap pressure at 23 psi 

gun inlet pressure, as measured at the gun 

inlet.  An air cap test kit (see Accessories) 

should be used to ensure 10 psi cap pressure 

is not exceeded. 

The No. 3 (HVLP) air cap requires a 14 scfm 

air supply at the gun inlet of 23 psi max., 

measured with the trigger pulled.

CONVENTIONAL MODELS ONLY:

The No. 1 air cap requires 10 scfm air supply 

at a gun inlet of 40 psi, measured with the 

trigger pulled. 

INSTALLATION

Note

Protective coating and rust 

inhibitors have been used to keep 

the gun in good condition prior to  

shipment. Before using the gun, 

flush it with solvents so that these 

materials will be removed from 

fluid passages.

For maximum transfer efficiency, do not  

use more pressure than is necessary to 

atomize the material being applied.

Connect the gun to a clean, moisture and oil 

free air supply using a hose size of at least  

5/16" I.D. hose. Do not use 1/4" I.D. hose.  

(25' x 1/4" hose at 18 CFM has a pressure 

loss of 25 psi. 25' x 5/16" hose at 18 CFM 

has a pressure loss of 8 psi.)

Note

Depending on hose length, larger 

I.D. hose may be required. Install 

an HAV-501 air gauge at the gun 

handle and air cap test kit over tip. 

When gun is triggered on, adjust 

regulated pressure to desired  

setting to provide a maximum of 

10 psi at the air cap. Do not use 

more pressure than is necessary 

to atomize the material being 

applied. Excess pressure will 

create additional overspray and 

reduce transfer efficiency.

Note

If quick connects are required, 

use only high flow quick connects 

approved for HVLP use, such as 

DeVilbiss HC-4419 and HC-4699. 

Other types will not allow enough 

air flow for proper gun operation.

Note

If an air adjusting valve is used 

at the gun inlet, use DeVilbiss 

Model HAV-500 or HAV-501. Some 

competitive adjusting valves 

have significant pressure drop 

that can adversely affect spray 

performance. Models HAV-500 and 

HAV-501 have minimal pressure 

drop, which is important for HVLP 

spraying.

(continued on page 4)

OPERATION

Mix, prepare and strain the material to  

be sprayed according to the paint 

maufacturer's instructions.

Strain material through a 60 or 90 mesh 

screen.

PAINTING

Open the spreader adjustment valve (5) (Fan) 

by turning the valve stem counterclockwise. 

Close the fluid needle adjusting knob (6) by 

turning clockwise. 

Turn on air supply and set gun inlet  

pressure; 23 psi for HVLP, 40 psi for 

conventional use. Some materials can be 

sprayed at lower pressures, improving 

transfer efficiency.

Spray a test area. Turn the fluid needle 

adjusting knob (6) counterclockwise until a 

full coat is obtained.

If the finish is too sandy and dry, the  

material flow may be too low for the  

atomization air pressure being used.  

Turn the fluid needle adjusting knob (6) 

counterclockwise to increase fluid flow.

If the finish sags, there is too much material 

flowing for the atomization air pressure 

being used. Turn the fluid needle adjusting 

knob (6) clockwise to decrease fluid flow.

Pattern width can be altered by turning 

spreader adjustment valve (5), either  

clockwise to decrease the width or 

counterclockwise to increase the width.

Adjust inlet air pressure to provide a uniform 

dispersion of atomized paint throughout 

the pattern. Keep air pressure as low as 

possible to minimize bounce-back and 

overspray. Excessive pressure will result in 

split spray patterns. Inadequate pressures 

will cause heavy centered patterns and poor 

atomization.

FLG4 GRAVITY FEED SPRAY GUN AND DeKUPS

®

 DISPOSABLE CUP SYSTEM

Summary of Contents for FLG-CNG-115

Page 1: ... Pressure 100 psi Gun Body Forged Aluminum Fluid Path Anodized Aluminum Air Inlet 1 4 NPS male Gun Weight 18 13 oz 514 g IMPORTANT DO NOT DESTROY It is the Customer s responsibility to have all operators and service personnel read and understand this manual Contact your local DeVilbiss representative for additional copies of this manual READ ALL INSTRUCTIONS BEFORE OPERATING THIS DEVILBISS PRODUCT...

Page 2: ...nts The chemical reaction caused by these solvents reacting with aluminum can become violent and lead to an equipment explosion Guns with stainless steel internal passageways may be used with these solvents However aluminum is widely used in other spray application equipment such as material pumps regulators valves and this gun and cup Check all equipment items before use and make sure they can al...

Page 3: ...ll an HAV 501 air gauge at the gun handle and air cap test kit over tip When gun is triggered on adjust regulated pressure to desired setting to provide a maximum of 10 psi at the air cap Do not use more pressure than is necessary to atomize the material being applied Excess pressure will create additional overspray and reduce transfer efficiency Note If quick connects are required use only high f...

Page 4: ...CEMENT Note When replacing the fluid tip or fluid needle replace both at the same time Using worn parts can cause fluid leakage Also replace the needle packing and fluid tip seal at this time Lightly lubricate the threads of the fluid tip before reassembling Torque to 15 20 ft lbs Donotovertightenthefluidtip The fluid tip part number and tip size are stamped around the outside of the fluid tip See...

Page 5: ...EN SB 2 779 R1 4 2018 5 12 www carlisleft com DeKUPS HOW TO USE THE SYSTEM 9 10 11 5 6 7 8 1 2 3 4 ...

Page 6: ... 1 6 FLG4 364 K Needle Knob Spring Bushing Gasket Kit 1 7 FLG4 366 K FLG4 Needle Needle Packing Nut Kit 1 8 FLG4 468 K Air Valve Gasket Kit 1 9 P MB 51 Air Inlet Nipple 1 10 FLG4 108 K Trigger Trigger Stud Screw 1 FLG 463 Air Cap 3 HVLP Test Cap JGA 4035 K5 Needle Packing Kit of 5 FLG4 488 K t FLG4 Gun Repair Kit Contains 1 each Fluid Tip Seal Needle Packing Trigger Stud Trigger Screw and Gasket f...

Page 7: ...sand paper 3 Check for dried paint just inside the opening remove by washing with solvent Heavy center pattern Fluid flow too high for atomization air Material flow exceeds air cap s capacity Spreader adjustment valve set too low Atomizing pressure too low Material too thick Balance air pressure and fluid flow Increase spray pattern width with spreader adjustment valve Thin or lower fluid flow Adj...

Page 8: ...leaking from packing nut Packing nut loose Packing worn or dry Tighten do not bind needle Replace or lubricate Fluid leaking or dripping from front of gun Packing nut too tight Dry packing Fluid tip or needle worn or damaged Foreign matter in tip Fluid needle spring broken Wrong size needle or tip Adjust Lubricate Replace tip and needle Clean Replace Replace Fluid dripping or leaking from bottom o...

Page 9: ...z bottles Compatible with all paint materials containsnosiliconeor petroleum distillates to contaminate paint MSDS available upon request Quick Connects For HVLP Guns Air High Flow Type HC 4419 Stem 1 4 NPT F Gun End HC 4699 Coupler 1 4 NPT M Hose End 29 3100 Scrubs Hand Cleaner Towels S c r u b s a r e a premoistened hand cleaner towel for painters body men and mechanics that go where you go and ...

Page 10: ...EN SB 2 779 R1 4 2018 10 12 www carlisleft com NOTES ...

Page 11: ...EN SB 2 779 R1 4 2018 11 12 www carlisleft com NOTES ...

Page 12: ...ations Region Industrial Automotive Automotive Refinishing Americas Tel 1 800 992 4657 Tel 1 800 445 3988 Fax 1 888 246 5732 Fax 1 800 445 6643 Europe Africa Middle East India Tel 44 0 1202 571 111 Fax 44 0 1202 573 488 China Tel 8621 3373 0108 Fax 8621 3373 0308 Japan Tel 81 45 785 6421 Fax 81 45 785 6517 Australia Tel 61 0 2 8525 7555 Fax 61 0 2 8525 7575 Carlisle Fluid Technologies is a global ...

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